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Optimalization of Power Electric Engineering Processes by Genetic Algorithms
Paar, Martin ; Hradílek, Zdeněk (referee) ; Skala, Petr (referee) ; Toman, Petr (advisor)
Current trends in regulation of electricity supply continuity in the power engineering industry includes introduction of systems and customers standards. The electricity market liberalization in the European Union is speeded up the process furthermore. Companies included in the distribution network bussiness therefore began to be interested more in the evaluation of risks associated with the aplication of these standards. The aim of the thesis is to minimize the expenses caused by power losses of the distribution network by means of distribution network reconfiguration depending on the standard selection. For the minimization two of the Genetic algorithms was selected. As an criterion the overall expenses caused by power losses and the expenses caused by an electricity shortage. Furthermore the influence of the inclusion of the power loss to the calculation on the operation costs for given regulation standards. Two contemporary standards - finish and portugues - are considered together with three experimental standards. The aim of including experimental standards is to complete the regulation standards with parameters uncovered in the portuguese and finish standard. The results described in the thesis can be used in the distribution network optimization process from the point of reliability and operational costs.
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SAIDI and SAIFI Calculation for a Low Voltage Distribution Networks in Mesh Configuration
Dohnal, Josef ; Souček, Jan (referee) ; Paar, Martin (advisor)
This diploma thesis aims to briefly interpret problems relating to continuity of distribution of electrical energy in a distribution network of low voltage. It also mentions methods of calculation of a distribution system´s reliability which are the most used in practice. Next, there is a chapter dedicated to how distribution networks are projected and operated in the Czech Republic and in the United Kingdom. Based on experiences with meshed networks operation this thesis designs protection of meshed distribution network of low voltage. In the end, a non-sequential method of Monte Carlo is used to calculate System Average Interruption Index (SAIDI) and System Average Interruption Frequency index (SAIFI).
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Reactive power compensation systems
Lakomý, Marek ; Paar, Martin (referee) ; Drápela, Jiří (advisor)
Bachelor‘s thesis deals with the compensation of reactive power, which enables improved power factor correction. The theoretical part includes an explanation of basic concepts of the theory of reactive power compensation, the basic allocation of compensating equipment, their description and basic computational relations. Simulation of compensation devices, making laboratory models and measuring their parameters were realized as the practical part of the thesis.
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Overcurrent protection relay testing using tester TZO3.
Vavreczky, Gábor ; Paar, Martin (referee) ; Toman, Petr (advisor)
The main task of this bachelor’s tesis is testing digital protection 7SA610 from Siemens. Purpose of the project is to take up with overcurrent functions of the protection, and realize it's testing through secondary tester TZO3. For this, the project grants theoretical foundations: deals with basic fault conditions in electrical networks, in detail describes the principle of individual types of overcurrent protections, grants informations about the used tester and about the used protection. In the final section of the thesis suggests applicable laboratory task in teaching at Department of Electrical Power Engineering, based on performed tests.
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Small Wind Power Plant Project
Görig, Tomáš ; Paar, Martin (referee) ; Matoušek, Antonín (advisor)
This thesis deals with finding an suitable locality for construction and technical design of small wind power plant station. The several ways are described and the best one is chosen. Also are projected and described several choices of usage the produced energy. Next part deals with economical side of power plant project as well as the ways of usage the produced energy. Results of this evaluation helped the investor to choose the best option.
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The Long-term Energy Planning
Pallová, Ivana ; Paar, Martin (referee) ; Radil, Lukáš (advisor)
This bachelor‘s thesis deals with long-term energy modeling. The theoretical part of the thesis is devoted to the explanation and description of the main parts of econometric models and comparison of these models. Then explains a description of LEAP modeling software. The practical part is focused on data analysis and their use for creating model of the energy system of the Czech Republic. The next part describes the creation of the model with information about input data and their expected progression until 2040. The last part is devoted to control and evaluation of results from LEAP modeling software.
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Power Systems Ranges of Main Parameters
Řehořek, Tomáš ; Gála, Michal (referee) ; Paar, Martin (advisor)
The thesis deals with description of the power system, parameters of it’s components and the range of outputs and consumption. In the first part the structure of the power system is described as well as the fundamental division of electric grids. In this part the work also touches on the ways of supllying the elctric traction. Furthermore the amount of production and consumption is mentioned. In the second part this work focuses on description of selected components of the power system and their real parameters. Furthermore the work also touches on the matter of electromobility and battery energy storage systems. In the last part of this work a few simple methods of consumption estimation are presented. This work also includes two infografics, that describe the power system.
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Potential Production of Electric Energy by Photovoltaic Panel and Tiles in Urban Area
Dvořáček, Jan ; Vrána, Michal (referee) ; Paar, Martin (advisor)
The bachelor's thesis deals with possible form of installation photovoltaic power plant on building, shading analysis and impaly possible way of calculation potential production of elektrical energy. In thesis is describe basic division and diferent methods of instalation photovoltaic systems. The following charter describing source of shading, shading analysis and effect of fading on photovoltaic moduls. The thesis include different way of calcuation potential production of elektrical energy by photovoltaic power plant. The practical part deals with the analysis of a selected area and the calculation of potential electrical energy using photovoltaic modules and photovoltaic roof tiles with chosen calculation method.
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Power Losses Calculation Depending on Distribution Network Configuration
Domes, František ; Souček, Jan (referee) ; Paar, Martin (advisor)
This master‘s thesis deals with the calculation of losses depending on the configuration of the distribution network. The first part focuses on the general theory regarding some used calculation methods of steady operation. The next part is theoreticly dedicated to the technical losses, possibilities of their influencing and their calculation. In the practical part is carried out the choice of calculation method of steady operation. This method is implicated into the proposed program in programming environment MATLAB.Furthermore, on the basis of a partial measurement in the distribution network and using the proposed program are determined the sizes of offtakes of mesh network. For the existing mesh network is designed its radial operation. In the last part are calculated the losses of this network for both of these mentioned operations.
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